muscles: head & neck region, chest. exam 2 Flashcards
what is the location of the mylohyoid?
inside curve of mandible
which muscles insertion is the eyelid?
orbicularis oculi
what is the insertion of the sternocleidomastoid?
the mastoid process (temporal bone and occipital bone
which muscles action is to controls the lips?
orbicularis oris
what muscles insertion is the frontal bone and maxilla?
orbicularis oculi
what is the action of the mylohyoid?
elevate hyoid bone, move tongue back (speaking, chewing, or swallowing)
what muscles origin is the sternum and clavicle?
sternocleidomastoid
what is the insertion of the orbicularis oris?
skin at the corners of the mouth
which muscles location is around the eye?
orbicularis oculi
which muscles action is to turn head, contract both, pull head forward and down?
sternocleidomastoid
what muscles insertion is the hyoid bone?
mylohyoid
what is the origin of the orbicularis oris?
maxilla and mandible
what is the action of the orbicularis oculi?
moves eyelid
what muscles origin is the medial(inside) surface of mandible?
mylohyoid
what is the location of the sternocleidomastoid?
along side the neck
which muscles location is around the mouth?
orbicularis oris
what is the location of the serratus anterior?
lateral thorax partly deep to pectoralis major
what muscles origin is the clavicle, sternum, cartilage of ribs 2-6?
pectoralis major
which muscles action is to pull scapula forward and down?
pectoralis minor
what is the action of the pectoralis major?
flex, adduct, rotate the arm
which muscles location is deep to pectoalis major?
pectoralis minor
which muscles insertion is the vertebral border of scapula?
serratus anterior
what is the insertion of the pectoralis major?
greater tubercle, intertubercular groove (sulcus) of humerus
what muscles origin is the anterior surface of ribs 3, 4, & 5?
pectoralis minor
what is the action of the serratus anterior?
rotate scapula, move scapula up, and lateral abduction
what muscles insertion is the corocoid process of scapula?
pectoralis minor
what muscles location is the big superficial chest muscle?
pectoralis major
what is the origin of the serratus anterior?
ribs 1-8
what muscles action is to separate ribs during inspiration?
external intercostals
what is the location of the internal intercostals?
between ribs deep
what muscles origin is the xiphoid process (sternum), costal cartilage of ribs 5-10, lumbar vertebrae?
diaphragm
what muscles origin is the superior border of rib below?
internal intercostals
what is the insertion of the diaphragm?
central tendon of the diaphragm
what muscles location is between the ribs superficial?
external intercostals
what muscles action pulls ribs together during expiration?
internal intercostals
what is the location of the diaphragm?
the floor of the thoracic cavity
what is the insertion of the external intercostals?
superior border of rib below
what muscles action pulls itself down during inspiration?
diaphragm
what is the insertion of the internal intercostals?
inferior border of rib above
what is the origin of the external intercostals?
inferior border of rib above
